Grandmother.
"Brother", "uncle" and "father" are all male.
"Grandmother" is female.
She is your Great Aunt or your Grandmother.Breaking it down, your father's uncle is your great uncle. Your great uncle's brother is also your great uncle (or your grandfather), and his sister is your great Aunt (or grandmother).
If your uncle is the brother of your mother or father, his mother is your grandmother and her father is your great grandfather. Your great grandfather's wife is your great grandmother. All presuming that there were no widowers or divorces and second marriages among these ancestors.If your uncle is the husband of the sister of one of your parents, then his mother's father's wife (his maternal grandmother) is not related to you at all.
The brother of your aunt's husband is not your uncle. Also the brother of your uncle who is not your uncle is your father.
Your uncle is your father's or mother's brother so your uncle's father is your grandfather.
Your uncle on your father's side is your father's brother.
Cousin
It could be your father. Your niece's daughter's grandmother is your aunt. Her brother's son's father is either your father or your uncle.
She is your Great Aunt or your Grandmother.Breaking it down, your father's uncle is your great uncle. Your great uncle's brother is also your great uncle (or your grandfather), and his sister is your great Aunt (or grandmother).
Grandmother, if your Uncle is actually the brother of your mother or father.
your great uncle your grandmother's brother is your parent's uncle.... and confusingly enough when your parent is related to someone of the generation older than them (their uncle) it becomes your (great uncle) great relative.
A half brother means that they either had the same father or mother as the rest of the siblings, but a different father or mother making them a half brother. You Grandmother's half brother would be your great uncle.
She is your Great Aunt or your Grandmother.Breaking it down, your father's uncle is your great uncle. Your great uncle's brother is also your great uncle (or your grandfather), and his sister is your great Aunt (or grandmother).
Your grandmother's brother is your great uncle.
Your great grandmother's brother is your great great uncle.
If your uncle is the brother of your mother or father, his mother is your grandmother and her father is your great grandfather. Your great grandfather's wife is your great grandmother. All presuming that there were no widowers or divorces and second marriages among these ancestors.If your uncle is the husband of the sister of one of your parents, then his mother's father's wife (his maternal grandmother) is not related to you at all.
Your grandmother's brother is your great uncle.
Your grandmother's brother is your great uncle. Your great uncle's grandchildren are your second cousins.